Chemistry Practice Question and Answer
8 4 Q:
5f437f8497c6dd29b38f2e3f 4 Q:
63aaaa8ae590d4085fcfe00f 4 Q:
5f698e99473e9b04bc1fb350 4 Q:
61275d63b05363065a006bf3 4 Q:
5f7456a94637db732832dd4c 4 Q:
6441214c72ca731a9945cdd8 4 Q:
63c921fdb338bc336f0ddb80 4 Q:
5ef2f33d7c1ec61320b147a2
Q: Alkali metal can
1372 05f437f8497c6dd29b38f2e3f
5f437f8497c6dd29b38f2e3f- 1Be highly unstable at room temperaturefalse
- 2vaporize at room temperaturefalse
- 3easily lose electronstrue
- 4easily gain electronsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "easily lose electrons "
Q:Read the following questions carefully and answer them.
The polymer used in making plastic crockery is
1371 063aaaa8ae590d4085fcfe00f
63aaaa8ae590d4085fcfe00f- 1Decronfalse
- 2Nylonfalse
- 3Bakelitefalse
- 4Melaminetrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Melamine"
Q: What type of reaction is corrosion?
1362 05f698e99473e9b04bc1fb350
5f698e99473e9b04bc1fb350- 1Reduction reactionfalse
- 2precipitation reactionfalse
- 3oxidation reactiontrue
- 4combination reactionfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "oxidation reaction"
Q: Which of the following non-metals are kept immersed in water?
1361 061275d63b05363065a006bf3
61275d63b05363065a006bf3- 1Sulfurfalse
- 2White Phosphorustrue
- 3Red Phosphorusfalse
- 4Iodinefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "White Phosphorus"
Q: What is the basic element of all organic compounds?
1359 05f7456a94637db732832dd4c
5f7456a94637db732832dd4c- 1Nitrogenfalse
- 2Oxygenfalse
- 3Carbontrue
- 4Sulfurfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Carbon"
Q: Which of the following is an organic compound with the formula C6H4Cl2 that is used as a fumigant insecticide to control cloth months?
1357 06441214c72ca731a9945cdd8
6441214c72ca731a9945cdd8- 1Paradichlorobenzenetrue
- 2Chlorobenzenefalse
- 3Benzoyl chloridefalse
- 4Ethylbenzenefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Paradichlorobenzene"
Q: What is the function of a catalyst in a chemical reaction?
1354 063c921fdb338bc336f0ddb80
63c921fdb338bc336f0ddb80- 1Decrease rate constant of reactionfalse
- 2Increases activation energy of reactionfalse
- 3Reduces enthalpy of reactionfalse
- 4Does not affect the equilibrium constant of reactiontrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Does not affect the equilibrium constant of reaction"
Q: Which acid is used in lemons?
1354 05ef2f33d7c1ec61320b147a2
5ef2f33d7c1ec61320b147a2- 1Acetic acidfalse
- 2Nitric acidfalse
- 3Citric acidtrue
- 4All of the abovefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Citric acid "
en26618popular